The following are electronic resources that will enable you to find information on businesses within a certain geographic region.
The following sites are good for finding information about cities in the United States. This covres everything from demographic information about the population to climate and crime rates to information about schools, transportation and attractions as well as facts about real estate and employers.
These are books that are in the reference collection and provide demographic information about areas of the United States. There are several that provide information specifically for Texas and the Waco area.